Rail joint and chair.



D` W. CAMERON.

RAIL JOINT VAND CHAIR.

APPLmATIoN FILED 1mm, 1911.

Patemean 24, 1911.

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@acme/fon .wila/'www 'V ES @Filiiiiiiit DASKEL W'. CMERQN, Ol PITTSBURGH, Il?ENNSYLVANIAl RAIL JOINT AND CHAIR.

. Specication of Letters Patent.

Patented Urt. 24519111..

applicationlediJanuax-y 7,1911. Serial No. 691,342.

To dll whom it may-concern." j

Be it known thatI, DANIEL 'i/V. CAMERoN, citizen of the United lStates,d residing at Pittsburghnin the county? of Afllegl'ieny and State of l?ennsylvanis.y have invented ce1'-v -tain newland useful improvements in Rail Joints and Chairs, of Whichl the following is a specification.

This invention relates to an improved rail joint-and -chain-'and'has foren object to prorideia loekingineans for "the adjoining endslof rails which insures the rigidity of the joint androne which at the same time cani be quickly and easily applied to the'ra-ils.

The invention further contemplates a safety joint which willnctbecome detached by the' breakage of thelocking or holding nutsat one side of thelsarneffor instance when the Wheels :of th'e =rolli.ngstook leave the track and cut'the protruding nuts and the endsof the' clamping bolts at one side of the'j'oint releasing the bolts from the joint and-permitting, the ends of the rails to sepa- Fig 51 is atransverse neutral section takenf4 rate'. j' lo obviate this danger-.this invention 'prorides-auliary clamping bolts and nuts which are housed and protected'so that the asiges of the wheels cannot reach-the-same.

' The inventionhas for la still further object-t0 provide a comparatively simple and inexpensive joint.A adaptable to rails now lcommonly used, Whether the rail be of the ball type-or of the flange type as is con1. monlyflused in streetv railway construction. Fora .full understanding of the invention and the=inerits thereof and also to acquire a knowledge of the detailsof construction, reference is to be had to the following description and: accompanying drawings, in whi'cli 1 is a lside elevation of the ini-I proved joint, partially in section; Fig'. 2 is a horizontal.section taken through the same. Figi isa transverse section taken on the line 3+-3 of Fig. 1. :'Fig. 4e is atop plan vieweof oneuof the staple bolts detached'.

' through. .the joint ldisclosing. al vslight :modication therein. j

`Correspondingandlike parts are referred toin the followingdescription and indicated' in all the'yiewsof thedrawing by the saine reference characters.

Referring to the drawing the. reference.

numerals 110 and 10a designate the-meeting endsof two' rails which are securedftogether v10 and 10a 'are supported upon a chair com` posed of the-side .plates 11 and 11a arranged 1n f registration against the opposite sides of thelrails and employed-in lieu of the fish plates now used. The plates 11 and 11a are spaced outwardly from the sides of the Webs l0b `of the-rails andare turned in at their upper edges -as at 11b to seat snugly beneath theheads lof the rails. 'As noted from Fig. 3; The lower ends ofvthejolatesl 'l1 and ila are vturned outwardly @and :engage over and beneath the base iianges't()c of the rails to provide base plates 1lc andl 11d. The base `plate 11c is provided at its inner edge `with a lip .11e which is formedby reducing the thickness of the inner edge of the base plate by recessing the upper@ face thereof. The; base plate 11d is provided with a lip l1f at its inner edge which is formed by recessing the lower-.face of the base plate 11d.

AThe lip llf overlaps the lip 112.. The. inner opposite faces of the lips 11e and l1if are provided with :ribs 1lg which interfiere/hen the plates register and hold thesaine from lateral .displacement relative ,to one another.

The websilb of the railsare apertured as at lOd in theV usual manner, the apertures being disposed in longitudinal registration midway between the bases 10c and thefheads of therails: Staple bolts 12 and 12a are arranged ini overlapping relation against the opposite sides of thewe'bs 10b to secure .the

-railsections together; :Each of the staple bolts 12 is formed: of a-rounded har bent substantially U-shape and having relatively long andthreaded-arms 12b whichengage :through the 4openings v10d of the 1rails. Inner .clampingnutsfl engageover the threaded arms 12b of the staple bolts-and bind againstlr vthe Webs 10b betweenithesame and-the plates ll and lia. The arms 12b extend out from the nuts'l andproject through openings formed in the plates' 11 andvlla :in registration with the openings 10d Vin the fraile. Outerfclamping nuts y13 are carriediupon the arms 12b against the outer.y faces ofthe plates l1 and lla. Staple bolts 12lthus serve :the double functionofvholding the rails 10 and l0a together and also retaining the chair plates l-l andrlla in position.- At the fends of the plates l1 and 11a transverse fbolts 14 are employed, the' same'being of commonforni -the opposite sides of the Webs 10b.

and having clamping nuts 15 upon 4their outer ends. The bolts .14 are employed for the purpose of binding the ends of the plates 11 and 112l against the rails. As the staple bolts 12 are arranged in overlapping relation, and as their central. portions rest snugly against tie opposite sides( of the Webs 1()b of the rails, such central portions of the staple bolts v12 are arched down to accommodate the larms 12b of the opposite staple bolts and the inner clamping nuts 13 Which are carried thereon. disclosed to advantage in Fig. 1. In assembling this form ofrail joint, and chair the staple bolts 12 and 1 2a are engaged againlst T e staple, bolt 12 is so positioned that one of .its arms 12b engages through the opening 10d at the extreme inner end of the rail 10 `While its opposite arm 12b engages through the second last opening 121 formed through the end of the rail 10a. The opposite and overlapping staple bolt '12a has one of its arms 12b positioned through the opening at the extreme end of the rail 10a, such arm passing over the cent-ral portion of the staple bolt 12 at the opposite side of the rail 10a. The opposite arm 12b`of the staple bolt 12a engages through the second last opening in the rail 1() beyond the arm 12b of the staple bolt 12. The central portion of the staple bolt 12a is arched down beneath the arm 12b of the staple bolt 12. The inner. clamping nuts13 are noW positionedover the arms 12b tobind the staple bolts 12 and 12a against the opposite sides of the Webs 10b. The

lchair plates 11 and 11a are now engaged against the opposite sides of'the `.rails 10 -and 10a, the lips 11e and 11f overlapping to register the ribs 11g. In -positioning the plates 11 and '11a the arms 12b of the staple bolts 12 and 12a engage through-the openings in the chair plates. The outer clamping nuts 13a are now/positioned upon the outer extremities of the arms 12b andare tightened against the outer faces ofthe chair plates 11 and 11a.

' are noW clamped through'the plat-es 11 and 112L and the Webs 1()b of the-rails. Should, by .accident a Wheel leave the rails 10 and 101 and pass over thev outer face of one of the plates 1 1 or 11a and out oif the outer clamping nuts 13a and the extremities of the, arms 12b, the staple bolts 12 would not be released from the rails 10 and 10a and the rails would be held in position. `The' arrangement of the staple bolts 12a and their inner clamping nuts 13 oiisets accidents incident to the separating oftherails when the outer clamping nuts a're cut off from the joint. The heads of the rails l() and 10a protoet the inner clamping nuts 13 as they lie snugly against the webs 10b andeannot be reached by the flange ofthe wheel which has left the track. This 'arrangement is had This construction isl arms 12b of the staple bolts.

The transverse bolts 14' '12b strike thev innerends o at both sides of the rails 10 and 10a so that the joint cannot be severed by the Wheel when it falls at either side of the rails.

In'Fig. 5 a slightly modified form of the rail. joint is disclosed, in which the Webs 10b of the rails are short. In thxis' instance the space between the bases 1Qc of ther rails and the heads thereof is not sufficient to admit of the positioning of the `conventional size of inner clamping nuts and wherein. it is neces sary to form the inner clamping nuts'13b with annular grooves 13c to snugly receive the central portions of the staple bolts 12 and 12a. The end inner clamping nuts 13d, which do no t have the staple bolts engaging therebeneath, are provided With rounded outer edges 13e to snugly lit against the inner shoulders formed at the upper edges of the chair plates 1-1. In this form-the outer clamping nuts 13a are provided With lock orspring Washers 15 interposed between the outer clamping nuts 13a and the outer faces ofthe chair plates 11. It will be noted that in assembling this modified form of the rail joint that the central portions of the so staple bolts 12 must be inserted in the grooves 13c of t-he inner clamping nuts 13b prior -to the attachment lof the nuts over the The staple bolts 12 and 12a are-fed into position through the Webs 10b by the inward movement ofthe nuts 13a over the arms 12b. As these nuts 13a are interlocked with the central portions of the staple bolts, the staple bolt 12 cannot b'e Withdrawn from the Webs 10b until the nut 13a of the opposite staple bolt 12a is released therefrom, and vice versa. Y

It will be particularly observed from Figs. 1 and 3 .of the drawing that the ribs 11g formed upon t-he adjacent faces of the overlapping lips 11e land 11t provide a plurality of spaced shoulders having in- Wardly inclined faces adapted to interlock when the plates 11 and 11a are brought into registration to prevent the pulling of the plates away from the Webs 10b of the rails. It Will be' noted from Fig. 1 that a depression is formed between contiguous -shoulders `to receive the shoulder of the overlapping lip when the plates are4 displaced longitudinally from one" .another to admit of the separation of the plates when it is desired to open the joint. The chair plates 11 and 11atv are provided with elongated aperturesenv gaging over the arms 12b to admit ofthe longitudinal movement of the plates 11 and 11a against the sides of the rails when interlocking the corrugations 11g. The slots in the plates are of such length that when the,

shoulders 'of the ribs' 11g re 'feter the arms the slots and hold the another.

The clamping bolts 14 are provided with nuts 1 5a interposed between the' webs 10b plates from moving past one oftherails and chair plates 11 and Illa, With the provision `of t-hese inner clamping nuts the'bolts 14 will not fall from the chair plates l1 and' l1 when the outer clamping' 'nuts-'15 are cut, or are otherwise displace described the invention, whatl Having thus is claimed is:

l. A rail joint including the meet-ing ends of rails', a pair of overlapping'staple bolts engaging against thel opposite sides' ofthe rails and engaging across e the, @extremities thereof, said staple bolts beingarehed downwardly at' their central portions to receive the inner arms of the opposite bolts, c1amp.

ing nuts carried upon the arms of the bolts and binding against the rails, chair. plates' positioned against the sides -of the rails to house the staple bolts and having base plates seating beneath the rails, the base plates being provided ,with overlapping and oppositely corrugated lips adapted to intermesh land hold the base plates from longitudinal displacement, the arms of the staple bolts' engaging through the chair plates, inner clamping nuts carried by the -arms and binding against the Webs of the rails, and outer clamping nuts engaging against the outer faces of the chair plates.

3. A rail joint including the meeting ends ofirails, plates engaging against the opposite sides of the rails, bolts carried through the Webs and the' plates and having their ends Vextending oppositely therethrough, said plates being spaced from the sides of the rails, inner clamping nuts carried upon the bolts against the Webs of the rails, and outer clamping nuts carried upon the bolts against the outer faces of the plates.

4. 'A rail joint includingthe meeting ends their threaded of rails, U-shape bolts overlapping against the opposite sides of the. rails and having arms engaging therethrough, the central portions of the U-bolts beingoffset to receive the arms of the opposite bolt, and clamping nuts disposed upon the threaded. extremities of the bolts for binding engagement against the sides of the rails.

5. A rail joint including the meeting ends of rails, U-shape bolts engaging in overlapping relation against the opposite sides of the rails and having their central portions oft'- set to accommodate the arms of the opposite bolts, clamping nuts carried upon the arms -of the bolts and engaging snugly against the vsides `of the rail, sh' plates engaging against the sides of the rails and having their central portions spaced slightly' therefrom to accommodate 'the clamping bolts, the extremities of the bolts passing through the fish plates, and outer clamping nuts carried upon the bolts and engaging against the outerv sides of the fish lates. p 6. A rail joint including the meeting ends of the rails, overlapping U-bolts engaging against the opposite sides vof the rails and being offset at their central portions to receive the arms of the opposite bolts, fish plates carried against the sides of the rails and being spaced slightly therefrom to accommodate the central portions of the UI bolts, the arms of the U-bolts extending through the ish plates and being threaded throughout their lengths, inner clamplng nuts carried uponthe arms and engaging against the Webs of the rails, and outer clamping nuts'carried upon the arms of the U-bolts and binding against the outer faces of the fish plates. Y

In testimony whereof, I aiiix my slgnature in presence of two Witnesses.

DANIEL W. CAMERON. [1.. s] 

